1. Focus.
Depth of Field Under/Over Exposure
Depth of Field can be either where
a photograph focuses on either
the background or the foreground.
The photograph that I have taken,
focuses on the foreground, the
hanging branches. I have blurred
out of focus the tree and street
lighting behind it.
Under and over Exposure covers
where a photograph is taken in
either too dark or too light a
setting. The flash on a camera can
also affect these factors. My image
above is under exposed, it is too
dark and you loose a lot of the
detailing in the foreground.